third_party/WebKit/Source/core/layout/line/EllipsisBox.cpp

   1 /**
   2  * Copyright (C) 2003, 2006 Apple Computer, Inc.
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Library General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Library General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Library General Public License
  15  * along with this library; see the file COPYING.LIB.  If not, write to
  16  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA 02110-1301, USA.
  18  */
  19
  20 #include "config.h"
  21 #include "core/layout/line/EllipsisBox.h"
  22
  23 #include "core/layout/HitTestResult.h"
  24 #include "core/layout/TextRunConstructor.h"
  25 #include "core/layout/line/InlineTextBox.h"
  26 #include "core/layout/line/RootInlineBox.h"
  27 #include "core/paint/EllipsisBoxPainter.h"
  28 #include "core/style/ShadowList.h"
  29 #include "platform/fonts/Font.h"
  30 #include "platform/text/TextRun.h"
  31
  32 namespace blink {
  33
  34 void EllipsisBox::paint(const PaintInfo& paintInfo, const LayoutPoint& paintOffset, LayoutUnit lineTop, LayoutUnit lineBottom)
  35 {
  36     EllipsisBoxPainter(*this).paint(paintInfo, paintOffset, lineTop, lineBottom);
  37 }
  38
  39 IntRect EllipsisBox::selectionRect()
  40 {
  41     const ComputedStyle& style = lineLayoutItem().styleRef(isFirstLineStyle());
  42     const Font& font = style.font();
  43     return enclosingIntRect(font.selectionRectForText(constructTextRun(font, m_str, style, TextRun::AllowTrailingExpansion), IntPoint(logicalLeft(), logicalTop() + root().selectionTopAdjustedForPrecedingBlock()), root().selectionHeightAdjustedForPrecedingBlock()));
  44 }
  45
  46 bool EllipsisBox::nodeAtPoint(HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, LayoutUnit lineTop, LayoutUnit lineBottom)
  47 {
  48     // FIXME: the call to roundedLayoutPoint() below is temporary and should be removed once
  49     // the transition to LayoutUnit-based types is complete (crbug.com/321237)
  50     LayoutPoint adjustedLocation = accumulatedOffset + topLeft();
  51
  52     LayoutPoint boxOrigin = locationIncludingFlipping();
  53     boxOrigin.moveBy(accumulatedOffset);
  54     LayoutRect boundsRect(boxOrigin, size());
  55     if (visibleToHitTestRequest(result.hitTestRequest()) && boundsRect.intersects(LayoutRect(HitTestLocation::rectForPoint(locationInContainer.point(), 0, 0, 0, 0)))) {
  56         lineLayoutItem().updateHitTestResult(result, locationInContainer.point() - toLayoutSize(adjustedLocation));
  57         // FIXME: the call to rawValue() below is temporary and should be removed once the transition
  58         // to LayoutUnit-based types is complete (crbug.com/321237)
  59         if (!result.addNodeToListBasedTestResult(lineLayoutItem().node(), locationInContainer, boundsRect))
  60             return true;
  61     }
  62
  63     return false;
  64 }
  65
  66 const char* EllipsisBox::boxName() const
  67 {
  68     return "EllipsisBox";
  69 }
  70
  71 } // namespace blink